Speed control for hosiery mending machines



Nov. 29, 1949 M. VlTOUX 2,489,688

SPEED CONTROL FOR HOSIERY MENDING MACHINES Filed Nov. 21, 1946 F90 2 INVEN TOR.

MA ZCEL V/ZOl/X 8 MM W A TTOQA/EYS eatsnd, mons er Patented Nov. 29,1,949

ron' l nosmnr "MACHINES I HanceLV-itoug New York, M3,, assignor toAmenan,, \{itos Company, Inc, New York,..-N.' Y;,La Q norationor newYork.

' Applicationlilovemher 21, rare-seam No. 711,320

- In;;Fl?ainoe-)Febnuary 7-, 1-946 31k. Qin ventibia;liltiteatosfiehdcoritrols or. gove t me-n t e usively. toe entered;esnegii'allg adapted for use ctr c motorsused in operstoc'liings. orother ending, devices may, be of a, l dipr ocatihg. needle .ated. bymeans of 'a i f'h m ans offtr ansm snomer maabe e neuma f c yn in hi ele tr dmotor limits-EJ3211 1? produce. sui ce ive ra e-esp compressedair or suction against a needle carrying piston within a cylinder. Ithas beengroundgthat immaohines of this type it is important tohave'means available by which, the mac'hin'es*may be operatedat' either"one of two constant speeds; one. relatively high,'=for=the normalmendjngjoneggtiongganxttthe other, slower, for carrying out certaindelicate operations or for "instructing beginners.

m cqnnepaon some It i therefore'animportantgobject difthe pres-"entinvention tcprovide aigovernor by the use of which such mendingdevices may be operated at more than one speed.

Another object of the invention is to provide N such a governor whichmay be adjusted at will by the operator for operating the mending deviceat desired speed.

Another object is to produce a device of the character described inwhich the maximum simplicity of construction and operation is secured.Other objects and advantages will appear as the nature of theimprovements is better understood, the invention consistingsubstantially in the novel arrangement and co-relation of parts hereinfully described, and illustrated in the accompanying drawings, whereinsimilar reference characters are used to denote corresponding partsthroughout the several views, and then finally pointed out andspecifically defined and indicated in the appended claims.

The disclosure made the basis of exemplifying the present inventiveconcept suggests a practical embodiment thereof, but the invention isnot to be restricted to the exact details of this disclosure, and thelatter, therefore, is to be understood from an illustrative, rather thana restrictive standpoint.

In carrying out the objects of the present invention, it was foundadvantageous to provide an axial type of governor which comprises ablock 2 connected to eachothen by means of a pair of springs,v The, saidouter weights arelwhatmight be-called the normal or. usual; governorweights which are adaptedftoffrictionally engage the inner diameter ofthe motor casing due to centrifugal force when the motor is running. Theinner weights. may be cut in and out of influence of centrifugal forceby 'means of a clutchfriction- "ally mounted on the motor shaft andwhich is adapted to be brought into andout of; operative engagement withthe said inner weights,

The invention will be more clearly'understood from the followingdetailed description when taken in conjunction with the accompanyingdrawings, in which Figure -1is a fragmental*sectionarview through oneendof a motor'showing the improvedgovernorasappiied' theretcrand Figure2 is a sectional view-taken on line 2"2 "o'f Figure-1'.

Referring now to the-drawings in detail 5 indicates t-herotating'shaft'whose speed is to be governed or controlled. 'The'saidshaft may be that of a motor for operating a mending machine and may berotatably mounted at one end in a bearing 6 of a motor housing 1. Theshaft 5 may be provided with a reduced portion 8 which extends outwardlyof the motor housing I and has a supporting block 9 affixed thereto bymeans of a set screw l0 extending through a hub l l of said supportingblock.

The block 9 due to its connection to the shaft 5 is rotatable therewithand is provided with a pair of oppositely extending radial cylindricalarms or stub shafts l2 at the outer ends of each of which there isslidably mounted a weight I3 about two sides and the end of which thereis secured a brake lining I4. The outer ends of the said weights l3 andthe brake linings I4 are arcuate so as to conform to the inner curvatureof a hollow cylindrical portion [5 extending from the motor housing I.The brake lined weights I3 are connected to each other by means of apair of parallel springs l6 anchored on screws I! carried by the weightsI3.

slidably supported on the stub shafts or arms l2 intermediate the sidesof block 9 and peripheral weights l3 are a pair of supplementary weightsI8, one for each arm l2. The said weights l8 are provided with segmentalprojections or extensions l9 which are adapted to be engaged by theinner surface of an annular flange or apron 20 of a clutch 2|frictionally held yet slidable on the shaft projection 83. The means forfrictionally yet slidably mounting the clutch upon the shaft extension 8comprises a flat spring Zla having a bent over portion 22 at one endthereof projecting into the shaft extension 8, the opposite end of thespring bearing against the inner reduced shaft engaging bore 23 of theclutch 2|. A cover 24 is affixed to the cylindrical extension I andcovers the motor housing end in which the governor mechanism abovedescribed is housed.

When it is desired to operate the device at the normal high speed, theclutch is slid into the position shown in Figure 1 wherein the apron orflange 29 embraces the segmental extensions IS on the intermediate orsupplementary weights i8 thus maintaining said weights out of theinfluence of the centrifugal force generated by the rotating shaft. If,however, it is desired to run the device at a slower speed, the clutchis drawn or.

slid up the shaft extension 8 until a web 25 in the reduced bore 23approaches or contacts the underside of the head 26 on a stud 27 screwthreadedly maintained in the end of said shaft extension 8. When thusfreed the weights I8 will slide outwardly against the peripheral weightsl3 and increase the friction on the inner wall or bore of thecylindrical housing extension i5.

To prevent rotary movement of the weights l3 and is upon the arms I2 andto permit free passage of the springs l6 from the screw [1 on one weight[3 to the screw H of the other weight l3, the supporting block 9 isprovided a pair of grooves 28 on the sides adjacent said springs and theweights iii are provided with similar grooves While there is shown anddescribed a two speed control it will readily be seen that by theprovision of a second set of auxiliary or supplementary weights and byproviding suitable embracing means on the clutch 2 I, a three speedcontrol can be readily provided.

It is apparent that the specific embodiment shown has been given by wayof illustration and not by way of limitation, and that the structureabove described is subject to wide variation and modification withoutdeparting from the intent or scope of the invention, all of whichvariations and modifications are to be included within the scope of thepresent invention.

What is claimed is:

In a motor having a hollow cylindrical casing extension and a shaftextending therethrough, a governor for said shaft, said governorcomprising a support on the shaft, a pair of oppositely disposed radialarms carried by said support, a weight slidably mounted near the end ofeach of said arms, a pair of extensible springs connecting said weightson opposite sides, the said weights being operable by centrifugal forceand having outer cylindrical surfaces to contact the cylindrical innersurface of said hollow cylindrical casing extension and to maintain therotation of the shaft at one speed, supplementary weights slidablycarried on said arms intermediate the support and the respective firstmentioned weights, projections on said supplementary weights havingconcentric, cylindrical surfaces, and a clutch frictionally yet slidablymounted on said shaft and having inner cylindrical surfaces adapted toengage the cylindrical surfaces of said projections for gripping andreleasing said projections at will for controlling the speed of rotationof said shaft, said support and said supplementary weights beingprovided with grooves through which the springs pass to prevent rotarymovement of the weights relative to the arms.

7 MARCEL VITOUX.

REFERENCES CITED FOREIGN PATENTS Number Country :4 Date 259,508 ItalyJuly 4, 1928 269,523 Germany s Jan. 23,1912

